Sensitivity to light is so universally useful that many kinds of animals have evolved eyes. The structure of the eyes of diverse animals, however, varies considerably, and with this variation come differences in what information about the world the eyes can capture and convey to the brain. Thus, the role of vision in the lives of different animals cannot be assumed to be similar to our own experience. Let’s look at some examples.
It was April 20th of this year. We were sitting in our lovely three-season sun porch enjoying the coming of spring, I on the couch and Yvonne, opposite me, in her favorite gliding rocker. All of a sudden she exclaimed, “Look. There’s a duck on our railing!”
Nature’s Depths is dedicated to exploring the natural world, seeking to understand it to an ever greater degree, and cultivating a sense of being an integral part of it. In this post, however, I will explore not so much ways of understanding but rather ways of valuing. As we’ll see, understanding and valuing are closely intertwined.
Among the annual changes that occur in the deciduous forests of the Upper Midwest, the Northeast, and many parts of Canada is the extravagant production of the sweet sap of sugar maples (Acer saccharum, Family Sapindaceae) and a handful of other tree species.